Cultivator.



PATENTED MAR. 10, 1903.

G. L. SWANSON.

GULTIVATOR. APPLICATION FILED NOV. 3, 1902.

3 SHEET 8 ET 2.

N0 MODEL.

Inveniar Carl L. Swanson di'iy.

PATENTED MAR. 10,1903.

C. L. SWANSON. GULTIVATOR.

APPLICATION FILED NOV. 3, 1902.

3 SHEETS-SHEET 3.

lnverzior: Carl L .Swamon Wz'fizesses M y lliviThn STATES PATENT @TTTCE.

CARL L. SWANSON, OF BLUE RAPIDS, KANSAS.

CU LTlVATOR.

SPECIFICATION forming part of Letters Patent No. 722,264, dated March 10, 1903.

Application filed November 3, 1902. Serial No. 129,853. (No model.)

To aZZ whom, it may concern:

Beitknown that I, CARL L. SWANSON, acitizen of the United States, residing at Blue Rapids, in the county of Marshall and State of Kansas, have invented certain new and useful Improvements in Cultivators, of which the following is a specification.

My invention relates to improvements in two-row cultivators; and one of my objects is to mount the seat plank upon the gangframes in such a manner that the gangs will be free to follow irregular furrows with the least possible friction between the sliding end of the seat-plank and gang upon which it is mounted. This desirable object is attained by providing one of the gang-frames with a turn-table carrying frictionless rollers, between which one end of. the plank is adapted to slide, while its opposite end is pivotally secured to the companion frame, so that independent movement of the gangs will only be limited by the length of a groove in the seatplank and not restricted by friction between said plank and the gang-frames upon which it is mounted.

A further object of my invention is to provide a simple and inexpensive gang-frame arranged to permit the greatest latitude in the adjustment of the cultivating appliances, so the latter may be set without interfering with braces and other parts of the frame to follow rows indifierently-plowed fields.

The invention may also be said to consist in the novel arrangement and combination of parts hereinafter described, and more particularly pointed out in the claims.

Referring now to the accompanying drawings, which illustrate my invention, Figure 1 represents a plan view of the machine with one end of the seat-plank broken away to show the parts below. Fig. 2 is a side elevation of the machine with the cultivating appliances lowered to a working position. Fig. 3 is a detail perspective View of one of the gang-frames. Fig. 4. is a detail perspective view of the lever-shaft. Fig. 5 is a longitudinal sectional View of the turn-table provided with the rollers between which one end of the seat-plank operates. Fig. 6 is a vertical cross-section of the same. Fig. 7 is an inverted plan view of the upper section of the turn-table.

In practice I prefer to employ two gangs having their frames connected by a seatplank, and as they are duplicates I will for convenience proceed to describe but one of them. In constructing the gang-frame I employ an upper longitudinal bar 1, rigidly secured at its central portion to the under side of tongue 2.

3 indicates a plurality of triangular brackets adjustably secured at their upper ends to the opposite portions of bar 1 by means of caps 4, removably held in position by bolts 5. The lower corners of the brackets are provided with bearings 6 and 7, in which are journaled short shafts 8 and 9, respectively, the former of which are supported by wheelarms 10, secured at their upper ends to the adjacent ends of the shafts. The lower ends of the wheel-arms are provided with stubshafts 11, upon which are mounted groundwheels 12. Said lower ends are also provided with eyebolts 13 to receive the lower hook ends of connecting-rods 1 1, which are bent at right angles at their upper ends 14 to pivotally receive crank-arms 15. The latter are cast integral with a shaft 16, journaled in bearings 17 in the lower ends of the hangers 18, secured to the opposite sides of the tongue, and a bearing 19 in the lower end of a notched segment 20, secured to a brace 21, fastened at its opposite ends to one of the hangers 18 and the under side of bar 1 by bolts 22 and 23, respectively. Shaft 16 is operated by a hand-lever 24., provided with a latch 25 for engagement with a notched segment, and is bent inwardly at its upper end toward seat 26, so the driver can conveniently operate it without leaving said seat.

27 indicates a pair of disk-arms adjustably secured at their upper ends to shafts 8 by caps 28 and bolts 29. Said disk-arms are provided at their lower ends with adjustablysecured stub-shafts 30, upon which are mounted disks 31.

32 indicates a pair of shovel-beams adj ustably secured at their forward ends to shafts 9 by caps and bolts 33 34., respectively, and are provided at their lower ends with shovels 35. Said shovels are raised and lowered by crank-arms 36, adjustably secured at their upper ends to shafts 9 by bolts 37 and pivotally secured at their lower ends to the roar portions of connecting-bars 38, which extend in or out of the ground, as will be readily understood.

In order to prevent the frame from twisting when the disks and shovels are in operation, I firmly secure top bar 1 by a pair of braces 41, rigidly secured at their opposite ends to brackets 18 and the opposite portions of said top bar.

The rear portion of the tongue on one of the frames is provided with a circular plate 42, which is rigidly secured to the tongue above the central portion of top bar 1 and is provided with upwardly-projecting annular flanges 43 44, the former of which snugly fits into an annular groove 45 in a rectangular casting 46, provided with a central boss 47, which fits into an annular depression 48 in the lower plate, said casting and lower plate being secured together by a central bolt 49, the upper casting being adapted to turn on the lower plate in the same manner as the fifthwheel of a wagon. Casting 46 has upwardlyextending integral lugs 50 at each corner to receive transverse bolts 51, upon which are journaled rollers 52. Said casting also has outwardly-extending lugs 53 at each corner to receive transverse rods 54, on which are journaled a companion set of rollers 52, there being just sufficient space between the two sets of rollers to receive and permit the free movement of one end of the seatplank 55. The longitudinal movement of the seat-plank is limited by a longitudinal groove 56 in its under side, and a roller 57 fitting therein and journaled upon bolt 49 to reduce to a minimum the friction created by the contacting side walls of the groove. The rear portion of the tongue on the opposite frame is also provided with a plate 42, upon which is rotatably mounted a casting 46, similar to casting 46, with the exception that the lugs and rollers are dispensed with and it is rigidly secured by bolts 58 to the end of the seatplank, while the plate and casting are held together by a central bolt 49 which extends up through the seat-plank and is secured by a nut 59. With the seat-plank thus pivotally secured at one end and slidably secured at its opposite end it is obvious that independent movement of the gangs will not be limited by friction between the seat-plank and the frames upon which it is mounted.

In arranging the gangs for the first time over the rows nuts 5 are loosened and brackets 3, together with shafts 8 9 and parts secured thereto, are moved inwardly a suitable distance toward the middle portion of shaft 1 and again secured by tightening-nuts 5. The shovel-beams and disk-arms may then to the top bar 1 permits of the cultivating appliances being set to accommodate furrows of different width without interfering with parts of the frames. Another advantage gained by dividing the lower shafts into sections is that their inner ends pass on opposite sidesof the corn, and consequently the latter can be cultivated until it attains the height of the top bar 1.

Having thus described my invention, What I claim, and desire to secure by Letters Patcut, is

1. A cultivator-frame comprising an upper longitudinal bar, brackets secured thereto, and a plurality of lower shafts journaled in the brackets, substantially as described.

2. A cultivator-frame comprising an upper longitudinal bar, brackets adjustably secured thereto, and a plurality of lower shafts journaled in the brackets, substantially as described.

3. A cultivator-frame comprising an upper longitudinal bar, triangular brackets suitably secured thereto, and a plurality of short shafts journaled in the brackets, substantially as described.

4. In a cultivator, a gang-frame comprising an upper longitudinal bar, brackets suitably secured thereto, and short shafts journaled in the brackets; a tongue rigidly secured to the frame, ground-wheels suitably secured to the forward lower set of shafts, and cultivating appliances suitably secured to the rear set of short shafts, substantially as described.

5. In a cultivator, a gang-frame comprising an upper longitudinal bar, brackets adjustably secured thereto, and short shafts journaled in the brackets; a tongue rigidly secured to the frame, ground-wheels suitably secured to the forward lower set of shafts, disks adjustably secured to said shafts, and shovels adjustably secured to the rear set of shafts, substantially as described.

6. In a cultivator, a frame which is triangular in cross-section and comprises an upper shaft, brackets secured thereto, and a plurality of short front and rear shafts; draft appliances secured to the frame, groundwheels secured to the forward lower set of shafts, disks suitably secured to said shafts, cultivating appliances secured to the rear set of shafts, crank-arms also secured to said rear set of shafts, connecting-bars adjustably secured to the crank-arms, a journaled shaft, cranks cast integral therewith, which are pivotally secured to the forward ends of the connecting-bars, and a hand-lever suitably se- ICC described.

7. In a cultivator, a suitable frame, short journaled shafts forming the lower portion thereof, ground-wheels suitably secured to the forward set of journaled shafts, cultivating appliances adjustably secured to the front and rear journaled shafts, crank-arms adjustably secured to the rear set ofjournaled shafts, connecting bars pivotally secured to the crank-arms, a tongue secured to the frame, hangers secured to the opposite side of said tongue, a brace secured at its opposite ends to one of said hangers and the upper portion of the frame, a notched segment secured to the brace, a shaft journaled in the lower portions of the hangers and the segment, a let'er secured to the shaft and provided with alatch to engage the notches in the segment, and crank-arms suitably secured to the shaft and pivotally secured to the forward ends of the connecting-bars, substantially as described.

8. A cultivator consisting of two sections, turn-tables secured thereto, a seat-plank secured to one of the turn-tables and slidably secured to the other, substantially as described.

9. A cultivator consisting of a plurality of sections, a turn-table secured to one of said sections, a turn-table secured to the opposite section, rollers journaled upon the last-mentioned turn-table, and a seat-plank secured at one end to the first-mentioned turn-table, and slidably secured at its opposite end hetween the rollers on the last-mentioned turntable, substantially as described.

10. A cultivator consisting of two sections,

a turntable secured to one of said sections, a turn-table secured to the other section, rollers journaled upon the last-mentioned turntable, a bolt projecting upwardly from the central portion of said turn -tab1e, a seatplank provided with a groove to receive the bolt and secured at one end to the first-mentioned turn-table, and slidably secured at its opposite end between the rollers on the lastlnentioned turn-table, substantially as described.

ll. A cultivator consisting of two sections, a turn-table secured to one of said sections, a turn-table secured to the other section, rollers journaled upon the last-mentioned tnrntable, a bolt projecting upwardly from the central portion of said turn-table, a roller journaled upon the bolt, a seat-plank provided with a longitudinal groove to receive the roller on the bolt and secured at one end upon the first-mentioned turn-table and slidably secured at its opposite end between the rollers on the last-mentioned turn-table, substantially as described.

In testimony whereof I affix my signature in the presence of two witnesses.

CARL L. SWANSON.

Witnesses:

J. W. BOLING, U. S. SWANSON. 

